Wood Handbook, Wood as an Engineering Material

(Wang) #1

Table 5–4b. Mechanical properties of some commercially important woods grown in Canada and imported
into the United States (inch–pound)a


Static bending Compression


parallel to
grain
(lbf in–2)

Compression
perpendicular
to grain
(lbf in–2)

Shear
parallel to
grain
(lbf in–2)

Common species
names


Moisture
content

Specific
gravity

Modulus of
rupture
(lbf in–2)

Modulus of
elasticity
( 106 lbf in–2)
Hardwoods
Aspen
Quaking Green 0.37 5,500 1.31 2,350 200 720
12% 9,800 1.63 5,260 510 980
Bigtooth Green 0.39 5,300 1.08 2,390 210 790
12% 9,500 1.26 4,760 470 1,100
Cottonwood
Balsam, poplar Green 0.37 5,000 1.15 2,110 180 670
12% 10,100 1.67 5,020 420 890
Black Green 0.30 4,100 0.97 1,860 100 560
12% 7,100 1.28 4,020 260 860
Eastern Green 0.35 4,700 0.87 1,970 210 770
12% 7,500 1.13 3,840 470 1,160
Softwoods
Cedar
Northern white Green 0.30 3,900 0.52 1,890 200 660
12% 6,100 0.63 3,590 390 1,000
Western redcedar Green 0.31 5,300 1.05 2,780 280 700
12% 7,800 1.19 4,290 500 810
Yellow Green 0.42 6,600 1.34 3,240 350 880
12% 11,600 1.59 6,640 690 1,340
Douglas-fir Green 0.45 7,500 1.61 3,610 460 920
12% 12,800 1.97 7,260 870 1,380
Fir
Balsam Green 0.34 5,300 1.13 2,440 240 680
12% 8,500 1.40 4,980 460 910
Pacific silver Green 0.36 5,500 1.35 2,770 230 710
12% 10,000 1.64 5,930 520 1,190
Subalpine Green 0.33 5,200 1.26 2,500 260 680
12% 8,200 1.48 5,280 540 980
Hemlock
Eastern Green 0.40 6,800 1.27 3,430 400 910
12% 9,700 1.41 5,970 630 1,260
Western Green 0.41 7,000 1.48 3,580 370 750
12% 11,800 1.79 6,770 660 940
Larch, western Green 0.55 8,700 1.65 4,420 520 920
12% 15,500 2.08 8,840 1,060 1,340
Pine
Eastern white Green 0.36 5,100 1.18 2,590 240 640
12% 9,500 1.36 5,230 490 880
Jack Green 0.42 6,300 1.17 2,950 340 820
12% 11,300 1.48 5,870 830 1,190
Lodgepole Green 0.40 5,600 1.27 2,860 280 720
12% 11,000 1.58 6,260 530 1,240
Ponderosa Green 0.44 5,700 1.13 2,840 350 720
12% 10,600 1.38 6,130 760 1,020
Red Green 0.39 5,000 1.07 2,370 280 710
12% 10,100 1.38 5,500 720 1,090
Western white Green 0.36 4,800 1.19 2,520 240 650
12% 9,300 1.46 5,240 470 920
Spruce
Black Green 0.41 5,900 1.32 2,760 300 800
12% 11,400 1.52 6,040 620 1,250
Engelmann Green 0.38 5,700 1.25 2,810 270 700
12% 10,100 1.55 6,150 540 1,100
Red Green 0.38 5,900 1.32 2,810 270 810
12% 10,300 1.60 5,590 550 1,330


General Technical Report FPL–GTR– 190
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